Seasonal population fluctuations of<i>Bactrocera invadens</i>(Diptera: Tephritidae) in relation to mango phenology in the Lake Victoria Crescent, Uganda

Mayamba, Alex; Nankinga, C.K.; Isabirye, Brian E.; Akol, Anne M.

doi:10.1051/fruits/2014033

Cited by 8 publications

(3 citation statements)

References 15 publications

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“…By contrast, 86 out of 100 growers in Guinea noting fruit flies as their biggest problem (Van Mele et al, 2009a). This diminished view of fruit flies as a pest is due, in part, to the common practice of harvesting mangoes at early maturity stage, with little or no flesh softening, when the fruits are less attractive to the flies (Mayamba et al, 2014). Fruit fly problems are also reduced as a consequence of local, postharvest practices that raise fruit temperatures to levels that are lethal to a significant proportion of deposited eggs and emerged larvae, limiting the development of infestation (Kirkegaard et al, 2016).…”

Section: Discussionmentioning

confidence: 96%

“…Losses due to larval infestation in mango at harvest depend upon fruit maturity and timing within the mango season) (Mayamba, Nankinga, Isabirye & Akol, 2014;Vayssiè res, Korie & Ayegnon, 2009) The levels reported by Kirokan growers (Table 1) were broadly in line with those in Benin, where c.80% of interviewed growers believed they lost 20-45 per cent of their harvest to fruit fly infestation, with the remaining 20% estimating even higher losses (Sinzogan et al, 2008). An increasing population density of fruit flies as the season progresses may also be a contributory factor as illustrated by Vayssieres et al (2015), who trapped almost no B. invadens at the beginning of the mango season, increasing to 35,000-55,000 flies per month at the season end.…”

Section: Discussionmentioning

confidence: 99%

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Grower Perception of the Significance of Weaver Ants as a Fruit Fly Deterrent in Tanzanian Smallholder Mango Production

Kirkegaard¹,

Msogoya²,

Offenberg³

et al. 2017

SAR

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Managed populations of weaver ants in mango trees have been used successfully in Australia, SE Asia and parts of Western Africa to deter fruit flies from ovipositing in ripening fruits. The presence of indigenous weaver ants in mango trees of smallholder growers in Tanzania offers the possibility of exploiting them as an affordable, environmentally -friendly method to improve marketable fruit yield and quality. In a preliminary interview study in a mango-growing region of rural Tanzania, the farmers were not convinced of any beneficial, deterrent effect attributable to the indigenous weaver ants in their trees and were sceptical of any likely value as a biological control technique. Additionally, fruit fly infestation was not seen as a priority problem and subsequent enquiry and investigation showed that, fortuitously, traditional, local practices for storage and enhancing ripening prevented the development of a significant proportion of any deposited eggs. Subsequent field studies supported the grower perceptions as they recorded only an erratic and limited deterrent effect.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Grower Perception of the Significance of Weaver Ants as a Fruit Fly Deterrent in Tanzanian Smallholder Mango Production

Kirkegaard¹,

Msogoya²,

Offenberg³

et al. 2017

SAR

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“…The traps were rotated weekly using the same trees to compensate for possible errors due to specific trap location. The set-up of the experiment followed a randomized complete block design with trap catches as the response variable, the AEZs as blocks and the lures as treatments (Mayamba et al, 2014).…”

Section: Fruit Fly Samplingmentioning

confidence: 99%

Species composition and community structure of fruit flies (Diptera: Tephritidae) across major mango-growing regions in Uganda

Isabirye

Akol

Mayamba

et al. 2015

Int. J. Trop. Insect Sci.

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The species diversity of tephritid fruit flies in major mango-growing regions in Uganda was monitored over a 2-year period (2010 -2012) using fruit bait and lure traps. A total of 368,332 specimens belonging to 10 species in four genera (Bactrocera, Ceratitis, Trirhithrum and Dacus) were collected. Of these, 98.9% belonged to Bactrocera invadens, while the second and third most common species were Dacus bivittatus (0.4%) and Ceratitis anonae (0.3%), respectively. Significant differences in the evenness and diversity of fruit fly species were noted across the regions. Fruit fly community structure was significantly different across the three regions. The Lake Victoria Crescent and Mbale Farmlands harboured significantly more D. ciliatus, T. coffeae, D. bivittatus and B. cucurbitae in contrast to the Northern Moist Farmlands and the Western Medium High Farmlands. Ceratitis rosa contributed the highest difference in regional structure, followed by C. fasciventris and C. cosyra. Rank abundance curves depicted a geometric series distribution of the species composition in the three regions, confirming a scenario of competitive displacement of native fruit fly species by B. invadens. A comprehensive and sustainable response strategy to B. invadens and other fruit flies needs to be urgently devised to protect the horticulture industry in Uganda.

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The Use of Weaver Ants in the Management of Fruit Flies in Africa

Vayssières¹,

Offenberg

Sinzogan

et al. 2016

Fruit Fly Research and Development in Africa - Towards a Sustainable Management Strategy to Improve Horticulture

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Seasonal population fluctuations ofBactrocera invadens(Diptera: Tephritidae) in relation to mango phenology in the Lake Victoria Crescent, Uganda

Abstract: Seasonal population fluctuations of Bactrocera invadens (Diptera: Tephritidae) in relation to mango phenology in the Lake Victoria Crescent, Uganda.

Cited by 8 publications

References 15 publications

Grower Perception of the Significance of Weaver Ants as a Fruit Fly Deterrent in Tanzanian Smallholder Mango Production

Grower Perception of the Significance of Weaver Ants as a Fruit Fly Deterrent in Tanzanian Smallholder Mango Production

Species composition and community structure of fruit flies (Diptera: Tephritidae) across major mango-growing regions in Uganda

The Use of Weaver Ants in the Management of Fruit Flies in Africa

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